 
         
         Abstract:
         
         Two tabular and two graphical techniques for the presentation of laboratory test results
            were compared in a reaction-time experiment with 22 volunteers. The experimental setup
            was designed to determine whether one or more of the presentation techniques facilitated
            the recognition of four predefined combinations of abnormal test results. Using a
            conventional, tabular presentation technique as a reference, faster median response
            times were obtained with each of the other three presentation techniques, irrespective
            of pattern. The effect on accuracy was less clear, possibly due to the small number
            of errors made.
         
         Keywords:
Laboratory Test Results - Color Coding - Graphical Representation - Evaluation